Arrow selection tool (V) only select video or audio clip even if original clip is linked

Hi all

Suddenly the arrow selection tool (V) in premiere is misbehaving. 

When clicking on a clip where audio and video are linked, the arrow tool now only selects the audio or video part of that clip depending on where I click, but it never selects both of them like it used to do up until now (and for the last 10 years, I would say).

In order to select audio and video I need to manually select them both, by drawing a rectangle around them or by ALT-clicking on both of them, which is really slowing down my editing process. Anyone knows how to revert back to the original way it behaved? 

Thanks

Dario